Since this thread got drug up to the top...
About the first picture ,fake ,cause if the engine gets on fire (explodes) goodbye Wing and half of the plane ,as said before : the fuel tanks are ABOVE the engine.
And about the second picture....i agree with Mike...Goodbye rotor and helicopter
As it's already been mentioned, engine exploding doesn't mean much for the wing going bye bye.
Looks like it's at least supposed to be a compressor stall, and those do make for some impressive fireballs with engines of that size. They can lead to large amounts of flame from the front and rear of the engine for a short time.
Related to later in the thread: that particular aircraft is on takeoff, not landing. Engine would be at high thrust and thus it makes for some interesting effects with flames as well.
Unfortunately, I cannot find any good pictures of a compressor stall in forward flight at this time (although I have seen some before). We had a 1900 that had a penchant for compressor stalls on the #2 engine for a while, but the PT-6 isn't nearly as impressive when it has them... simply a loud bang and surging in the power output from the engine.
Here is an example of a C-17 in reverse thrust:
http://www.airliners.net/open.file/1132131/M/However, it's misleading as a normal compressor stall at high output can leave some impressive signs.